摘要:
The invention relates to a more rapid method for producing tubular film (25, 40, 41, 42) from a polymer and/or metal film (A-E). According to the invention, the metal film (A-E) is in the form of at least one film web (A-E) prior to the joining of the tubular film. The edges of said film web (A-E) are interconnected during a joining process, thus creating at least one longitudinal seam (27). The tubular film is displaced in relation to the joining tools during said joining process.
摘要:
Die vorliegende Erfindung betrifft ein schneller als bisher durchführbares Verfahren zur Herstellung eines Schlauches (25,40,41,42) aus einem Polymer- und/oder Metallfolienmaterial (A-E). Der Schlauch wird während des Fügeprozesses relativ zu den Fügewerkzeugen bewegt. Neu und erfinderisch ist, dass das Metallfolienmaterial (A-E) vor dem Zusammenfügen des Schlauches in Form zumindest einer Folienbahn (A-E) vorliegt. Die Ränder dieser Folienbahn (A-E) werden in einem Fügeprozess miteinander verbunden, wobei zumindest eine Längsnaht (27) entsteht. Der Schlauch wird während des Fügeprozesses relativ zu den Fügewerkzeugen bewegt.
摘要:
Gezeigt wird Bodenlegevorrichtung für Kreuzbodenpapiersäcke (1), - welche die Kreuzböden (1) von Papiersäcken bildet, - indem sie Faltungen an Enden der Schlauchabschnitte, aus denen die Säcke (1) hergestellt werden, vornimmt, - die auf diese Weise an den Schlauchenden gefalteten Böden (1) und/oder die für die Beleimung mit den Böden (1) vorgesehene Zettel (2) in Beleimungsstationen (10,20,30,40) mit Leimschichten. versieht, - und die gefalteten Böden (1) und die Zettel (2) miteinander in Kontakt bringt und verleimt. Im Gegensatz zu den Vorrichtungen des Standes der Technik verfügt diese Vorrichtung über - zumindest eine Beleimungsstation (10,20,30,40), - welche mit zumindest einem Leimreservoir (21) oder zumindest einer ' Leimleitung (33,52,53) ausgestattet ist, in dem oder der der Leim einem Druck, der höher als der Umgebungsdruck ist, ausgesetzt ist, - und wobei das zumindest eine Leimreservoir (21) oder die zumindest eine Leimleitung (33,52,53,55,72,73) mit mindestens einer Leimaustrittsöffnung (71) versehen ist, durch welche Leim direkt auf die Zettel (2) und/oder gefalteten Böden (1) gebracht wird. Neben der Vorrichtung werden auch Verfahren zu ihrem Betrieb dargestellt.
摘要:
A package (10) for a flowable material such as rice is made of four sheets of plastics material (14, 16, 22, 32) which are heat welded together along edge regions (18, 20, 24, 34) to form a bag. Two sheets (14, 16) forming sides of the bag together with a top sheet (22) define projections (4) of the bag via which apertures may be formed for access to the bag interior for filling the bag, or for emptying a filled bag. The provision of two projections (4) gives the bag increased versatility compared to prior art bags. The bag may include a strap handle (28) which extends across the top of the bag and is manufactured as a removable laminated portion of the top sheet (22) such that the strap handle (28) is formed during manufacture of the bag instead of being attached in an additional post-manufacture step. A method of manufacture is also disclosed and claimed.
摘要:
Procedimiento para la obtención de un tubular continuo de malla para la formación de bolsas para productos hortofrutícolas y similares y tubular continuo obtenido mediante dicho procedimiento. El procedimiento incluye las etapas de: a) desplazar longitudinalmente a igual velocidad dos bandas laminares (2-2') de malla reticulada, conformadas transversalmente en forma de C enfrentadas; b) aplicar exteriormente sobre cada pareja de paredes laterales (15-15') opuestas y coplanarias una banda laminar (6-6') de material plástico; y c) unir longitudinalmente cada banda de material plástico (6-6') a las paredes laterales coplanarias (15-15') sobre las que va adosada, para conformar un tubular continuo. El tubular obtenido está constituido por cuatro bandas longitudinales, dos laminares de plástico (6-6') y otras dos de malla reticulada (2-2').
摘要:
Stand-up, gusseted packages (10) having a recloseable closure mechanism (30) around the periphery of the package mouth (20). The package has opposite first (12) and second (14) panels, and first (22) and second (24) side panels, which together form a surrounding wall (13) that defines the mouth. The closure mechanism (33) is present on each of the panels. On the first and second panels, the closure mechanism is oriented inward, so that the panels can be interlocked. On each of the first and second side panels, the closure mechanism is oriented outward, and is present as a first portion and a second portion defined by the gusset. To close the package, the closure mechanisms on the first panel and second panel are interlocked, and the side panels are folded inward to allow the first portion and the second portion to interlock. Methods of making the package are described.
摘要:
A former allows rectangular tubes of material to be quickly formed for creating bags having rectangular cross sections. The former provides a transition between a round former (12) and a rectangular former (16) so that the material used to form the bag is initially wrapped into a tube around a round former so that the material does not tear on the corners of the former. The round tube of material is then drawn down over the former of the invention to change the round tube to a rectangular tube that may be formed into the bag (Fig. 4).
摘要:
A system and method for producing a partially perforated tear line on a substrate material uses an high energy beam to ablate the substrate material at a depth less than full depth of the substrate. By varying the output energy level of the high energy beam for varying time intervals, a substrate material is weakened to provide an easy open feature without significantly reducing the tensile strength of the substrate material. The ratio of partial perforated to unablated substrate material may vary according to almost any ratio.
摘要:
Gusseted packages (34) having openable and reclosable interlocking seals (36), the seals having male and female portions (36A, 36B), snap detents (73), and formed transversely to the direction of film flow. The packaging film (32) is provided at package length intervals with thermoformable strips (31) secured thereto transversely to the running length of the film.
摘要:
A reclosable bag (10) for packaging bulk items for retail sale has a body having opposing broad face panels (12, 16) defining a volume therebetween for holding a quantity of contents, an end of the body forming an expandable gusset (20, 62, 82) between the broad face panels, and a reclosable bag closure (30, 150) between the expandable gusset and corresponding edge region of one of the broad face panels. When the closure is opened a bag opening (42) is formed between the expandable gusset and said one of the broad face panels of the bag, to access the bag contents. In one example, the bag has upper and lower expandable gussets (18, 20), while in another the bag has expandable side gussets (62). The closure is readily closed without precise alignment and despite the adjacent gusset.